钼靶CR成像在四肢软组织内非金属异物手术定位中的价值  

Value of Mo X-ray Unit with CR Image for Operation Position of Non-metal Foreign-Body of Limbs Soft Tissue

作　　者：王晓洪[1] 罗巧云[1] 

机构地区：[1]江西省九江市第一人民医院放射科,江西九江332000

出　　处：《中外医疗》2009年第29期20-21,共2页China & Foreign Medical Treatment

摘　　要：目的评价钼铑双靶X线机摄片系统运用钼靶摄影技术及透X线定位绳定位四肢软组织内非金属异物的价值。方法对软组织有异物处,用透X线软绳做好体表定位,运用钼靶X线机摄取对应轴侧位片,通过CR影像系统处理后,进行诊断。结果钼靶摄影后的软组织内非金属异物,均能很清晰显影,运用透X线定位绳进行体表定位后,可以准确确定异物的位置及深度,便于临床医师取出异物。结论普通摄片所用钨靶X线机波长过短(0.2A),穿透力过强,对非金属异物的检出是一个盲点;而钼靶(波长为0.7A)x线机,应用其软射线的特点,对软组织非金属异物检出有特异性。利用钼靶机的这种功能,可以提升使用率,扩大诊疗范围。Objective To evaluate the value of Mo X-ray unit with CR image and ropes for the operation position of non-metal foreign-body of limbs soft tissue.Methods Using the ropes of position the surface of foreign-body of soft tissue,and taking axial and lateral view X-ray fiems, processing in CR system.Results Location and depth of the non-metal foreign-body of limbs soft tissue can be accurate found by the apptication of Mo X-ray unit with CR image and ropes surface position method.Conclustion The penentrating power of the general radiograph is great strength because of its short wavelength（0.2A）,but Mo X-ray unit with special function of soft X-ray（0.7A） adapts for the testing of non--metal foreign--body of soft tissue.

关 键 词：钼靶摄影 软组织异物 透X线软绳 

分 类 号：R814.3[医药卫生—影像医学与核医学]